1.Descriptions of Fused Cast AZS Bricks                  Â
Our fused AZS blocks mainly inclue model AZS-33#, AZS-36#, and AZS-41#. the different models applicated in different parts of furnaces.
AZS brick 33#, a normal refractory material, with the features of very good melting glass resisting, which seldom produces stone or other faults, and has little possibility to produce bubbles, widely used in glass Industrial furnace.
AZS brick 36# has more free baddeleyite crystals in chain structure and less vitreous se, which further improves the corrosion resistibility and reduces the potential defects in glass, so it is recommended to be used in sections where glass flow is faster and temperature is higher, such as melter sidewall, paving, doghouse, etc.Â
AZS brick 41#Â has the most free baddeleyite crystals among the fused cast AZS families, which are evenly distgributed within the block. Its corrosion resistibility is the best and thus it is usually recommended to be used in the most demanding positions to balance the furnace life.
2.Advantages of Fused Cast AZS Bricks                   Â
1. Best erosion resistance;
2. Not easy to generate small bubbles;
3. Good thermal shock resistance;
4. Stable performance for furnaces;
5. Suitable for structure;
6. Long service time.
3.Parameters of Fused Cast AZS Bricks                   Â
Specifications of AZS bricks | AZS 33 # | AZS 36 # | AZS 41# | ||
Chemicalanalysis | Al2O3 | Remain | Remain | Remain | |
ZrO2 | 32-34% | 35-37% | 40-42% | ||
SiO2 | Less than 16.0% | Less than 14.0% | Less than 13.0% | ||
Na2O | Less than 1.5% | Less than 1.6% | Less than 1.3% | ||
Fe2O3+TiO2+CaO+MgO+Na2O+K2O+B2O3 | Less than 2.5% | Less than 2.5% | Less than 2.5% | ||
Bulk density (dense part) | 3.85g/cm 3 | 3.95g/cm 3 | 4.0g/cm 3 | ||
Apparent porosity (dense part) | Less than 2.0.% | Less than 1.5.% | Less than 1.3.% | ||
Anti-corrosion rate of glass liquid (soda-lime glass, 1500 Celsius 36h) | Less than 1.6mm/24h | Less than 1.5mm/24h | Less than 1.3mm/24h | ||
Bubbling tendency (soda-lime glass, 1300 Celsius 10h) | Less than 2.0% | Less than 1.5% | Less than 1.0% | ||
Exudation temperature of glass se | More than 1400 Celsius | More than 1400 Celsius | More than 1400 Celsius | ||
Volumeweight | Normal casting and tilting casting (RC or TC) | 3.45g/cm 3 | 3.5g/cm 3 | 3.55g/cm 3 | |
End casting (EC | 3.65g/cm 3 | 3.7g/cm 3 | 3.8g/cm 3 | ||
Void free casting (VF) | 3.75g/cm 3 | 3.9g/cm 3 | 3.95g/cm 3 | ||
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